This time I came back, the Dragon King stayed for a long time.

It took until April, almost May.

In almost three months, the entire Nanhai County has changed a lot.

After inspecting the entire county, Sima Zheng began to take office. He was in charge of Fan County and led the overall situation.

As for Xu Shao, he couldn't rest. He was like the Dragon King, wandering around the county, but he hadn't commented on someone or something recently. In fact, Xu Shao wanted to comment on the Dragon King's magic, but unfortunately he didn't understand this aspect, so he simply fell silent.

The Dawei Dragon King Coin has been circulated in various counties and has become the mainstream currency of Nanhai County. As for the five coins, they will only be used by outsiders when they come to Nanhai County. They usually go to the yamen to exchange the Dragon King Coin.

The main roads between the counties were gradually repaired. The Dragon King originally wanted to popularize jet vehicles in various counties, but his belief point could not keep up at all, so he could only delay the time.

The economic plants that the Dragon King cares about are growing very well. The ones that are expected to harvest this year include oranges and lychees. If this harvest is at least several million kilograms, the entire Nanhai County will definitely not be able to digest them. The Dragon King talked to Zhen Xun about this matter. Zhen Xun said that the Zhen family is actively preparing and will do their best to sell these fruits out.

The number of students from other places in Zhongsu County has finally decreased. Many students have published books, and the Dragon King has read them. The quality is different, but not many books can be used as teaching.

Both Mo Liang and Ma produced good chemical reactions. They successfully built the biogas room. Because the main material of biogas is various feces, the occupation that should have appeared in the Tang Dynasty: the night fragrance, and the two counties of Qingping and Mingfeng have appeared.

The Dragon King went to the beach and checked the condition of the pipeline vines. The growth of the pipeline vines is very terrible. Now, the length of the opened channel is more than 800 meters. The channel has been slanted downwards. I don’t know how deep it is in the sea, because it is too dark outside and I can’t see anything at all.

The pipe vines that grow so huge have a large internal space, so they can even repair the house inside. It can be said that in addition to slightly flawed, the pipe vines are quite successful.

When there are water-retardant droplets in the future, you can open an exit somewhere in the pipeline vines, and then slowly expand it, from scratch, and maybe you can really build an undersea city soon.

Yu Ji's apprentice Hua Tuo has never come to Nanhai County. According to Yu Ji, Hua Tuo often practices medicine everywhere. Yu Ji has sent someone to notify him, but he didn't know whether Hua Tuo had received the news. It was inconvenient for communication these years and many accidents were unexpected.

At the end of April, the Dragon King returned to Qingping because Quangang sent someone to inform him that Ma Jun and Mo Liang had invented a jet-type overturning.

When I heard this new style of failure, the Dragon King had a premonition, but when I really saw it, the Dragon King had to praise it, praising these two people for being so talented.

The jet overturn is erected on the bank of a river in the Qingyuan River. It is about six meters high. It is a giant. It is made of wooden. It can be seen from the sight that there are nearly a hundred large or small gears around the overturn. The big one is like a round table, but the small one is only a few centimeters.

These gears are combined in a very delicate way that the Dragon King does not understand, but are combined. Ma Jun and Meng Liang also widely use rubber, and the blade shaft is connected with rubber and gears.

Next to the overturn, there were several large pots that looked like buckets, and the air outlets of the large pots were all together.

The operation method of this jet overturning is as follows: boil water with charcoal to boil the water in the pot and form steam. Several large pots of steam accumulate together and spray it on the outside blades. The blades rotate, and then drive the gears. Then, with the power of the rotation of the gears, drive the water draw plate of the overturning to draw the water from Qingyuan River.

When Ma Jun and Mo Liang demonstrated to the Dragon King, the ink workers turned the blower desperately to make the charcoal under the pot burn to the most. Under the influence of various forces, the water of Qingyuan River was pumped up, like a white horse roaring into the canal next to it.

This type of jet roll can absorb quite a lot of water, and it can irrigate hundreds of acres of fields in one hour.

"How did you think of it? I thought of using the power of steam." The Dragon King was stunned for a long time before asking, and he was surprised.

"It was what Ma Jun thought of. When Ma Jun was cooking that day, he saw the steam coming out of the pot and felt it was similar to the jet tricycle. Then he told Xiao, and we both wanted to try it. He asked Dragon King Hongfu, and Xiao did make it." Mo Liang said happily.

Ma Jun nodded and then said, "Dragon King, this charcoal seems not powerful enough. The young one knows that there is a kind of charcoal that can be higher than charcoal. If charcoal is used, this overturn should be improved."

Carbonite refers to coal. In the late Eastern Han Dynasty, there were already places using coal, so it was not uncommon for horses to know about it.

After a moment of silence, the Dragon King said, "In the heavens, there is a kind of machine called a steam engine."

Steam engine? Mo Liang then asked: "Dragon King, is what we are doing now the steam engine?"

"Well, it's almost the same." Dragon King pointed to the big pots: "This is the principle of the steam engine. In a sealed environment like a pot, it burns at high temperature to form steam. The higher the temperature, the greater the power of the steam spraying. The idea of ​​a jet tricycle also comes from the steam engine."

"So that's the case. The Dragon King's words made the villain suddenly realize. No wonder, the villain always felt that the steam was not strong enough, so he had to use several pots. It turned out that it needed to be sealed, just like a biogas tank."

"If it is sealed, then two pots are probably enough." Ma Jun also said.

"But in that case, the requirements for the pot will be high, otherwise it might explode."

"Well, go and ask Wang Blacksmith later to see if he can create that kind of pot."

"It's a pity that there is no charcoal, otherwise there would be no charcoal."

"Can biogas be used?"

"I'm afraid not, the temperature of the biogas is not high."

Listening to the two of them talking on their own, he even forgot about it. The Dragon King was in a complicated and joyful mood. Although it was inspired by the jet tricycle, no matter what, it was quite amazing that these two people could convert inspiration into physical objects by themselves.

After looking at the huge jet rollover again, the Dragon King slowly said: "Ma Jun, Mo Liang, you two are very good. I hope you can continue, continue to use your brain, and work hard to improve this steam engine. This thing has a huge effect."

"Don't worry, the Dragon King, the younger one will definitely work hard." Ma Jun and Mo Liang said in unison.

After leaving, the Dragon King kept sighing that if these two people really built the steam engine, they would probably usher in the steam era soon under his control. Once they entered the steam era, the technological progress would be very fast.
Chapter completed!